OpenSSL 1.1 API patch for sendmail has a bug which
prevents sm_RSA_generate_key() function from working.
This function is used to generate a temporary RSA key
for a shared memory region used for TLS processing.
Note that 12.0 and 12.1-RELEASE include this bug.
To trigger this bug, SM_CONF_SHM compile-time
option (enabled by default) and SharedMemoryKey
run-time option (not enabled by default) in a .cf file
are required. The latter corresponds to
confSHARED_MEMORY_KEY in a .mc file. See also Bug 242861.